Grooving and reenforcement supporting device and process



l 5 y P. J. M INERNEY GROOVING AND REENFORQEMENT SUPPORTING DEVICE ANDPROCESS Filed Jan. 29, 1925 3 Sheets-Sheet l J W 1 M M n a m N m,

E 5 1927, y P. .1. M INERNEY GROOVING AND REENFORCEMENT SUPPORTINGDEVICE AND PROCESS Filed Jan. 29, 1925 3 Sheets-Sheet 2 III [N] [III irnu. I

INVEN TOR 1,634,262 y 1927* P. J. MclNERNEY GROOVING AND REENFORCEMENTSUPPORTING DEVICE AND PROCESS Filed Jafi. 29, 1925 Sheets-Sheet 5 H 5.Fig.2 Hg 5. Eye. 1-1 15 Hgu. Fl la Patented July 5, 1927..

STATES 1,634,262 PATENT OFFICE.

PETER J. MOINERNEY, 01 DALLAS, TEXAS.

GROUVING AND REENFORCEMENT SUPPORTING DEVICE AND PROCESS.

Application filed January 29, 1925. Serial No. 5,539. RE he jointed tapeor ri on, e

This invention relates to a device and process for mechanically placingjoints, parting lines, patterns, markings and designs in plastic andsemi-solid substances such as asphalt, concrete or other matrices,referring more particularly to a device of this character for makingcleavage planes in highways, pavements, walks, roofs, floors or otherconstruction of a like nature, and at the same time positioningreenforcement means in said construction, where expansion or contractionoccurs after the material has mechanically set.

An object of the invention being the provision of a device which willmark 050 cleave the matrice, so that when possible separation of thelatter takes place, such separation will occur along the cleavage plane.

An objectis to provide a device which will be easily adjustable to formdemarkations of difierent depths and widths.

Another object is to provide such a device that will form said cleavageplane, before the material has attained a mechanical set.

A further object'is to provide a device which will place or positionsuitable reenforcement as the demarkation is made.

An advantage or feature of the invention is itssimplicity ofconstruction and economy of operation.

A further Bil I feature is the almost entire elimination of destructiveand unsightly fissures or cracks, separation, if present, occuring alongthe cleavage plane or planes made by the invention.

A feature of importance is that the blade or cutting member of thedevice will form an opening in the matrice which will allow settlementdeflection of the material without buckling or ru turing the structure.

A still furt er feature of the device is that it is so operated that ajointed band or ribbon of suitable material may pass through the blade,Which is hollow, and remain perma'nentlr inthe fissure formed by theblade. or may e taken up and used again after the matrice has set.

Also, hinge action of the blocks or sections of the matrice, ispermitted by the use of the device.

The cleava 'e planes formed by the device permit the placlng of strutsor other reenforcement below the cleavage planes or parting planes;

And the device may be used without employing t cleavage planes beingmade by the blade of p the device, and then filled with material ofconsistency and color. different than the matrice.

These objects together with advantages and features of the invention,may be more readily understood by reference to the followingdescription, of which the annexed drawings form a part, and in which:

Figure 1 represents a plan view of the invention in attachment to aconcrete mixer.

Figure 2 shows a side elevation of the invention, partly in section.

Figure 3 is a cross-sectional view taken on lines 3-3 in Figure 2.

Figure 4: is a cross section taken on lines l-4i in Figure 2.

Figure 5 is a perspective view of the invention on a highway.

Figures 6, 7 8, 9, 10, 11, and 12, represent difierent grooves 0rdema'rkations that are possible with the device.

Figure 15* is a' cross-section on lines 13-13 in Figure 2.

Continuing the description, a concrete mixer 1 of the portable type isshown ,in Figure 1 on a highway or pavement or other like surface markedby side forms 22. This mixer is attached to a subgrade template 3 whichmoves along the forms 2-2 on wheels 55, journaled on shafts 6-6, whichare set in each end of the template; The template is attached to theconcrete mixer by chains M, or other suitable means, and moves forwardwith the mixer. A red 9 extends parallel with the template and islikewise supported with wheels or rollers 88, moving on the side forms.Ties 7-7 hold the wheels on the rod and the wheels on the template inrigid relationship, maintaining the rod and template parallel. A blade11 of steel and preferably of hollow construction, is secured to thetemplate and supported by the rod. Braces 10-10 hold it rigid inattachment to the template. A spool 13 is mounted on a shaft 13 adjacentthe point of attachment of the blade and template, and a jointed ta e12is wound on this spool and passes there rom over a guide roller mountedto rotate freely on shaft 14. This shaft is positioned adjacent the endof the blade. The tape or ribbon, over the guide roller 14 extendsthrough the blade to the other end thereof. Its operation will bedescribed more fully hereinafter. The numeral 15 designates the point ofattachment of the blade to the template.

In Figures 2 and 5, the details of construction of the blade aremoreclearly shown, and also the position of the blade in relation to thesubgrade 19 and the matrice or surfacing 20. It will be noted that theblade, though shown in the drawings with its upper edge flush with thefinished matrice surface, maybe below' the surface, the finisher 16operating however above the blade the latter is not adapted to protrudeabove the finished surface. As the mixer is moved forward the blade cutsthe groove or channel and the tape passing throughthe blade is depositedin the channel or groove as the same is formed, or if the blade is usedwithout the tape, the cleavage may be filled with resilient materialsuitable and in common use as a filler of this character. I members orrunners 21 in attachment to the template extend longitudinally with theblade and as the device moves forward, pass from under reenforcements22-22, leaving them positioned below the groove or demarkation.

The opening or tunneling in the blade is designated by letter a.

The upright or body portion of the tem plate is designated by numeral18, and the subgrade shoe in Figure 3 by numeral 3. The blade is formedby steel plates joined together at the tops on plate 17 set between themand are welded together at their bottoms.

In the figures showing the forms of cleav age, namely, 6, 7, 8, 9, 10,11, 12, it should be understood that various changes in angles andcombinations of the-forms shown may be used. Also, in the operation ofthe device, one or more blades may be used, according to the contractorsjudgment, based on working conditions and problems of sub gradestructure and formation.

In operation, as the device moves forward, when the reenforcement is inthe rod form as shown in the drawings, the rods having been manuallyplaced over the runnersand under the blade, the blade forms the desiredgroove in the matrice, and deposits the tape therein. It should beunderstood that the tape should be treated with a non-volatile oil orgrease, so that it will not adhere to the matrice after the latter hasattained a mechanical set, but may be easily removed therefrom.

In the event that mesh reenforcement or longitudinally extending barsare used, this type of reenforcement is laid over the runners and underthe blade, guides being attached to the outward upper edges of therunners as a support to aline the reenforccment in the pavement directlybehind the de vice.

The T shaped members or runners move forward w1th the blade leaving thereenforcblade, as the device is nesaaea ing rods or other material inalined position in the material.

It should be understood that various changes in arrangement'andconstruction of the diflerent members of the invention may be resortedto without departing from'the spirit and intent of the following claims.

What is claimed is: l

1. In a combination grooving and r'eenforcement supporting device, asteel blade, means for drawing the blade through unset concrete,asphalt, or like material, the top of said blade on a level with orbelow the sur face of said material, supports for said blade, saidsupports resting on and guided by the side forms of the material, andrunners extending parallel with the blade and aligning reenforcementmaterial below the incision made by the blade as the latter is drawnforward.

2. In combination road building niachinery, in attachment to a concretemixer, a blade of hollow construction, a jointed tape of suitablematerial adapted to pass through the blade, means for feeding the tape,a template supporting the blade, said template and blade supported onthe side forms of the construction whereon they are used, and means toaline and support reenforcemeut members below the incision made by themoved over the sun face of the road. a

3. In a grooving device for highways and the like, a blade adapted tocleave the said highway pavement orthe like, before same hasmechanically set, and means to support and aline reenforcement materialbelow the cleavage plane as the latter is formed.

4. The hereindescribed process of forming cleavage planes in, andreenforcing highways, pavements, floors, roofs and otherlikeconstructions, by first mechanically cleaving the material before samehas attained a mechanical set, and at the same time, aliningreenforcement material below the cleavage plane, and by then laying ordepositing a ribbon or jointed tape in the cleavage plane, then removingsaid tape after the-construction material has attained a machanical set,

and finally fillingthe cleavage plane with a rnrna J. MclNERNEY.

